Switch to SysVinit init system

- Changed init system from systemd to sysvinit as requested
- Updated package list: live-config-sysvinit, sysvinit
- Kept debian-keyring and debian-archive-keyring for proper verification
- Removed problematic devuan-keyring hook to avoid bootstrap conflicts
- Updated README to reflect sysvinit usage
- Maintained all other functionality (SSH, OpenVPN, auto-start, etc.)

README.md

@@ -7,7 +7,7 @@ This project creates a custom Debian live ISO with the following features:
 - Auto-start of MbetterClient application on boot
 - Minimal Debian installer asking only for network configuration
 - Custom MBetter logos (converted from mbet.jpg)
-- Systemd init system
+- SysVinit init system (not systemd)
 - Full keyring support (debian-keyring, debian-archive-keyring)
 
 ## Prerequisites

config/common

@@ -46,7 +46,7 @@ LB_INITRAMFS="live-boot"
 LB_INITRAMFS_COMPRESSION="gzip"
 
 # Set init system
-LB_INITSYSTEM="systemd"
+LB_INITSYSTEM="sysvinit"
 
 # Set distribution mode
 LB_MODE="debian"

config/package-lists/live.list.chroot

 live-boot
 live-config
-live-config-systemd
-systemd-sysv
+live-config-sysvinit
+sysvinit
 openssh-server
 openvpn
 xserver-xorg